A general tool for testing performance of a pancake superconducting coil

Abstract

The present application relates to a kind of general tooling of cake-shaped superconducting coil performance test, and it relates to superconducting coil test field, comprising: support plate framework, support plate framework constitutes the design basis of tooling;Lockable jaw structure, lockable jaw structure is fixedly installed in support plate framework inside, lockable jaw structure includes the epoxy gear turntable of jaw part that constitutes fastening constraint cake-shaped coil, epoxy connecting rod, epoxy jaw and the turntable lock module for locking jaw part.This application has beneficial effects, by adjusting lockable jaw structure, different sizes of cake-shaped coil are responded, and the versatility of tooling is improved.

Description

Technical Field

[0001] This invention relates to the field of superconducting coil testing, and more particularly to a general-purpose tooling for testing the performance of a disc-shaped superconducting coil. Background Technology

[0002] In applications involving performance testing of disc-shaped superconducting coils, such as critical current testing and magnetic field testing, the superconducting coil needs to be immersed in a coolant such as liquid nitrogen. To ensure that the superconducting coil remains relatively stationary during the test and to properly organize the corresponding test leads, a fastening fixture is often used to clamp the disc-shaped superconducting coil.

[0003] Depending on the design requirements, the radial dimensions of the disc-shaped superconducting coil and its frame vary for different applications. Testing different types of disc-shaped superconducting coils necessitates the design and fabrication of different types of fastening fixtures. This increases testing time and costs, and also raises site management costs.

[0004] Furthermore, if a certain type of disc-shaped superconducting coil is no longer produced, the corresponding customized tooling will also be scrapped, resulting in a waste of materials.

[0005] To address the aforementioned issues, there is currently no satisfactory solution in the existing testing process. Therefore, it is necessary to propose a solution that can be applied to performance testing experiments of disc-shaped superconducting coils of different sizes. Summary of the Invention

[0006] To address the above technical problems, this invention provides a universal tooling for testing the performance of disc-shaped superconducting coils, used for fastening and mounting the disc-shaped superconducting coil to be tested, comprising:

[0007] A pallet frame, comprising: a base plate, a support column, a pallet, and a copper lug, wherein the support column is fixedly installed on the base plate, and the pallet is fixedly installed on the support column, forming the inner cavity of the pallet frame;

[0008] A lockable claw structure is fixedly installed in the inner cavity of the pallet frame;

[0009] A disc-shaped coil, which is fastened to the tray frame by the claw structure.

[0010] Furthermore, the lockable claw structure includes: an epoxy gear turntable, an epoxy connecting rod, an epoxy claw, and a turntable locking module. The epoxy gear turntable is fitted between the base plate and the support plate. The epoxy connecting rod is installed on the epoxy gear turntable and placed under the support plate. The epoxy claw is installed with the epoxy connecting rod and passes through the support plate. The turntable locking module is fixedly installed on the base plate and connected to the epoxy gear turntable.

[0011] Furthermore, the disc-shaped coil includes: a skeleton, a coil, and a strip lead wire. The skeleton is placed on the support plate and constrained by the epoxy claws. The coil is wound on the skeleton. The strip lead wire is welded to the coil and extends to be securely connected to the copper lug. The copper lug is fixedly mounted on the support plate.

[0012] Furthermore, the tray has several mounting positions, and the copper lug can be securely mounted on any of the mounting positions.

[0013] Furthermore, one end of the epoxy connecting rod is connected to the epoxy gear turntable, and the other end is connected to the epoxy chuck.

[0014] Furthermore, the epoxy gear turntable has equally spaced mounting holes, and the epoxy connecting rod can be connected to the epoxy gear turntable through different mounting holes.

[0015] Furthermore, the epoxy connecting rod is connected to the epoxy gear turntable by a hinge, and the epoxy chuck is connected to the epoxy connecting rod by a hinge.

[0016] Furthermore, the pallet has slots, and the epoxy claws pass through the slots, moving linearly along the slots.

[0017] Furthermore, the turntable locking module includes an outer frame, a feed shaft, and a stop block. The outer frame is fixedly installed on the base plate, the stop block is placed inside the outer frame, and the feed shaft passes through the outside of the outer frame and connects to the stop block.

[0018] Furthermore, the feed shaft moves linearly through the outer frame, driving the stop block to press or release the epoxy gear turntable.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] (1) Through the crank-slider structure composed of epoxy gear turntable, epoxy connecting rod and epoxy claw, the tension of epoxy claw is controlled by the rotation of epoxy gear turntable, and different sizes of disc-shaped superconducting coils can be constrained on epoxy support plate.

[0021] (2) By changing the fixed position of the epoxy connecting rod on the epoxy gear turntable, the tension size range of the pawl can be changed, thus expanding the applicability of the fastening fixture. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a structure according to an embodiment of the present invention;

[0023] Figure 2 This is an exploded structural diagram of an embodiment of the present invention;

[0024] Figure 3 This is a structural diagram of a pallet frame;

[0025] Figure 4 This is a schematic diagram of a lockable claw structure;

[0026] Figure 5 This is a schematic diagram of a disc-shaped coil structure;

[0027] Figure 6 This is a structural diagram of a turntable locking module.

[0028] The attached figures are labeled as follows: 100, pallet frame; 101, base plate; 102, support column; 103, pallet; 104, copper lug; 110, lockable claw structure; 111, epoxy gear turntable; 112, epoxy connecting rod; 113, epoxy claw; 114, turntable locking module; 1141, outer frame; 1142, feed shaft; 1143, stop block; 120, disc coil; 121, skeleton; 122, coil; 123, strip lead wire. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. To achieve the above objectives, the invention adopts the following technical solution.

[0030] like Figure 1-2As shown, this invention provides a general-purpose fixture for testing the performance of a disc-shaped superconducting coil. The fixture is used to clamp the disc-shaped coil 120 to be tested. The general-purpose fixture includes a tray frame 100, a lockable claw structure 110, and the disc-shaped coil 120. The disc-shaped coil 120 is fixed to the tray frame 100 by the lockable claw structure 110. In this example, the tray frame 100 includes a base plate 101, a support column 102, and a tray 103. The support column 102 is fixedly installed on the base plate 101, and the tray 103 is fixedly installed on the support column 102. The base plate 101 and the tray 103 in the tray frame 100, supported by the support column 102, form an inner cavity, and the lockable claw structure 110 is fixedly installed in this inner cavity. The lockable jaw structure 110 includes: an epoxy gear turntable 111, an epoxy connecting rod 112, an epoxy jaw 113, and a turntable locking module 114. The epoxy gear turntable 111 is fitted between the base plate 101 and the support plate 103. The epoxy connecting rod 112 is mounted on the epoxy gear turntable 111 and placed under the support plate 103. The epoxy jaw 113 is mounted on the epoxy connecting rod 112 and passes through the support plate 103. The turntable locking module 114 is fixedly mounted on the base plate 101 and connected to the epoxy gear turntable 111. The epoxy gear turntable 111 in the lockable jaw structure 110, constrained by the base plate 101 and the support plate 103, can rotate around its axis within the inner cavity. One end of the epoxy connecting rod 112 is connected to the epoxy gear turntable 111, and the other end is connected to the epoxy claw 113. The epoxy connecting rod 112 is connected to the epoxy gear turntable 111 via a hinge, and the epoxy claw 113 is connected to the epoxy connecting rod 112 via a hinge. The mounting holes on the epoxy gear turntable 111 are distributed outward from the origin, meaning that when the epoxy gear turntable 111 rotates, the portion between the mounting holes and the shaft forms a rotating arm. The epoxy connecting rod 112 connects the epoxy gear turntable 111 and the epoxy claw 113 via hinges. Furthermore, the epoxy claw 113 passes through a slot on the support plate 103, thus forming a crank-slider mechanism. The epoxy claw 113 moves linearly along the slot. The number of slots is the same as the number of epoxy claws 113, both being no less than three, and they are evenly distributed around the center of the support plate 103. A claw structure is formed by three sets of evenly distributed epoxy connecting rods 112 and epoxy claws 113. By rotating the epoxy gear turntable 111, the disc-shaped coil 120 placed on the support plate 103 is locked from inside the frame 121. During the test, the disc-shaped coil 120 is placed statically in a coolant such as liquid nitrogen, so there is no need to consider the constraint of the disc-shaped coil 120 in the vertical direction. The claw structure is sufficient to meet the constraint requirements of the disc-shaped coil 120. To prevent the epoxy gear turntable 111 from rotating during the test and causing the epoxy claws 113 to retract and no longer constrain the disc-shaped coil 120, a turntable locking module 114 is designed to lock the epoxy gear turntable 111.The turntable locking module 114 includes an outer frame 1141, a feed shaft 1142, and a stop block 1143. The outer frame 1141 is fixedly mounted on the base plate 101. The stop block 1143 is placed inside the outer frame 1141. The feed shaft 1142 passes through the outside of the outer frame 1141 and connects to the stop block 1143. By rotating the feed shaft 1142, the stop block 1143 is pushed to tighten or loosen the epoxy gear turntable 111 like a brake pad. If it is necessary to disassemble the disc coil 120, the epoxy gear turntable 111 can be unlocked by rotating the feed shaft 1142 in the opposite direction. After the disc coil 120 is clamped and constrained, the strip lead 123 is fastened to the copper lug 104 mounted on the support plate 103, forming the required test signal circuit with external test devices, signal sources, and other test instruments.

[0031] like Figure 3 As shown, multiple mounting holes for mounting copper lugs 104 are distributed on the tray 103. The specific location of the mounting holes is not strictly required and can be opened according to the actual test situation. If conditions permit, they can even be opened by oneself before the start of the test experiment. The main reason is to deal with different sizes and models of disc coils 120. If the copper lug 104 is fixedly installed at one point, the following situations may occur during the process of fastening the strip lead 123 and the copper lug 104 with different sizes of disc coils 120: (1) the strip lead 123 is not long enough to be fastened to the copper lug 104; (2) the strip lead 123 is too long and needs to be folded to be fastened to the copper lug 104. These situations are not allowed in the actual test experiment. Therefore, it is necessary to adjust the installation position of the copper lug 104 according to the size of the disc coil 120.

[0032] like Figure 4 As shown, the epoxy gear turntable 111 has equidistant mounting holes machined for the epoxy connecting rod 112. Each hole represents the size range of the disc coil 120 applicable to the current lockable claw structure 110. If the size of the disc coil 120 exceeds the claw range of the current lockable claw structure 110, the length of the active rod of the crank-slider structure of the lockable claw structure 110 can be manually increased by installing the epoxy connecting rod 112 on the next outer edge hole of the current hole, thereby shifting the claw displacement range and improving the versatility of this universal tooling. In actual use, the motion mode and shifting scheme of the claw structure can be designed according to the usage requirements, which will not be elaborated in this example.

[0033] like Figure 5As shown, the disc coil 120 includes a frame 121, a coil 122, and a strip lead 123. The frame 121 is placed on the support plate 103 and constrained by epoxy claws 113. The coil 122 is wound on the frame 121. The strip lead 123 is welded to the coil 122 and extends to be securely connected to the copper lug 104.

[0034] like Figure 6 As shown, the outer frame 1141 in the turntable locking module 114 mainly serves a supporting function and is directly fixedly installed on the base plate 101. The feed shaft 1142, which passes through the outer frame 1141, is threadedly connected to the outer frame 1141 and hinged to the stop block 1143. By rotating the feed shaft 1142, the push-in and pull-out of the stop block 1143 are controlled. By controlling whether the stop block 1143 is pressed tightly against the epoxy gear turntable 111, the locking function of the lockable claw structure 110 is achieved. In actual use, the feed action of the stop block 1143 can be designed according to the usage requirements, which will not be described in detail in this example.

[0035] In summary, the advantages of this application are: to constrain and fix the disc coil by a lockable jaw structure, thereby realizing the clamping function of the disc coil; and to improve the versatility of the tooling by adjusting the applicable range of the jaws of the lockable jaw structure to accommodate disc coils of different sizes.

[0036] Since this method cannot exhaustively list all embodiments, some preferred technical features and preferred technical solutions can be reasonably substituted or combined with each other, and the new technical solutions obtained therefrom are also included in this method.

[0037] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims. The accompanying drawings corresponding to the specific embodiments are provided as an aid to understanding, enabling the reader to fully grasp the abstract higher-level concepts involved in this method by understanding the concrete and visual lower-level concepts. When understanding this method as a whole and comparing it with other technical solutions besides those provided by this method, the appearance of the drawings should not be taken as the sole reference. Furthermore, after understanding the concept of this method, all modifications, equivalent substitutions, merging of feature elements, deletion and recombination of unnecessary technical feature elements, and reasonable addition and recombination of common unnecessary technical feature elements in the prior art, made according to or without reference to the drawings, should be understood as being encompassed within the spirit of this method.

Claims

1. A general-purpose tooling for testing the performance of a disc-shaped superconducting coil, used for fastening and mounting the disc-shaped superconducting coil to be tested, characterized in that, include: A pallet frame, comprising: a base plate, a support column, a pallet, and a copper lug, wherein the support column is fixedly installed on the base plate, and the pallet is fixedly installed on the support column, forming the inner cavity of the pallet frame; A lockable claw structure is fixedly installed in the inner cavity of the pallet frame; A disc-shaped coil, wherein the disc-shaped coil is fastened to the tray frame by the claw structure; The lockable claw structure includes: an epoxy gear turntable, an epoxy connecting rod, an epoxy claw, and a turntable locking module. The epoxy gear turntable is fitted between the base plate and the support plate. The epoxy connecting rod is installed on the epoxy gear turntable and placed under the support plate. The epoxy claw is installed with the epoxy connecting rod and passes through the support plate. The turntable locking module is fixedly installed on the base plate and connected to the epoxy gear turntable. The disc-shaped coil includes: a skeleton, a coil, and a strip lead. The skeleton is placed on the support plate and constrained by the epoxy claws. The coil is wound on the skeleton. The strip lead is welded to the coil and extends to be securely connected to the copper lug. The copper lug is fixedly mounted on the support plate.

2. The universal tooling for testing the performance of a disc-shaped superconducting coil according to claim 1, characterized in that, The tray has several mounting positions, and the copper lug is securely mounted on any of the mounting positions.

3. The universal tooling for testing the performance of a disc-shaped superconducting coil according to claim 1, characterized in that, One end of the epoxy connecting rod is connected to the epoxy gear turntable, and the other end is connected to the epoxy chuck.

4. The universal tooling for testing the performance of a disc-shaped superconducting coil according to claim 1, characterized in that, The epoxy gear turntable has equally spaced mounting holes, and the epoxy connecting rod is connected to the epoxy gear turntable through different mounting holes.

5. The universal tooling for testing the performance of a disc-shaped superconducting coil according to claim 4, characterized in that, The epoxy connecting rod is connected to the epoxy gear turntable by a hinge, and the epoxy chuck is connected to the epoxy connecting rod by a hinge.

6. The universal tooling for testing the performance of a disc-shaped superconducting coil according to claim 1, characterized in that, The pallet has slots, and the epoxy claws pass through the slots and move linearly along the slots.

7. The universal tooling for testing the performance of a disc-shaped superconducting coil according to claim 1, characterized in that, The turntable locking module includes an outer frame, a feed shaft, and a stop block. The outer frame is fixedly installed on the base plate, the stop block is placed inside the outer frame, and the feed shaft passes through the outside of the outer frame and connects to the stop block.

8. The universal tooling for testing the performance of a disc-shaped superconducting coil according to claim 7, characterized in that, The feed shaft moves linearly through the outer frame, driving the stop block to press or release the epoxy gear turntable.

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